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does anyone know how to wire A nine volt battery to a 4 double a socket? Answered

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I dunno. Try positive-to-positive and negative-to-negative. Here I am assuming the object you refer to as "4 double a socket" is a battery holder intended to hold four AA batteries in series. The expected voltage across a stack of four AA batteries is about 4*1.5 = 6 volts, and that's not exactly the same as 9 volts. But those 9V batteries are kinda weak anyway, in terms of internal resistance and how much current they can really supply. So substituting a 9V battery in an thing that normally uses 4 AA batteries... the idea is not that crazy, erm... depending on what exactly the thing, the load, is.

Inside your 4x-AA battery holder there are 8 terminals. That's 2 for each battery. Of these 8: 2 are the output terminals, and the other 6 are just connected to 3 little jumper wires that go from one battery to the next connecting them in series.

Figure out which of these terminals are the 2 output terminals. Then for those 2, figure out which is positive and which is negative. Then, as I suggested previously, connect the positive terminal of your 9V battery to the positive output terminal, and the negative terminal of the 9V battery to the negative terminal of the 4x-AA battery holder.

To help you with this task, I have attached a picture of what I expect the wiring of your 4x-AA battery holder looks like. I have labeled the batteries {B1,B2,B3,B4}, the output terminals {S-, S+}, and the jumper wires {J1, J2, J3}

However, there are likely to be other pictures, ones that are specific to the battery holders found on Nerf(tm) guns, and I am guessing those pictures can be found in those instructables on that subject.

On the right, over thar ------------------------------> in that "related" panel thingy.